Dpropeller Airplane hub Vin nose Vplade

Q: A sphere 6.0 cm in diameter, D, is fixed in airflow (see Figure). The approach velocity, V, is 4.0…

A: 1.  Reynolds number Re =vDν 2. CD vs Reynolds number chart is used to get the value of drag…

Q: Boeing 737-600 flies at altitude 150o0m above sea level with speed 85 m/s and total drag coefficient…

A: Given: The altitude of flight, h = 15000 m The speed of flight, v = 85 m/s The drag coefficient, cf…

Q: A ship is 180 m long and has a wetted area of 8000 m2. Estimate the power expended against drag when…

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Q: Air flows through the test section of a small wind tunnel at speed V = 7.5 ft/s. The temperature of…

A: Determine, if a boundary layer is laminar, turbulent or transitional and then compare the laminar…

Q: 2. A 0.10 cm-radius sphere falling in air (T= 20°C) at a speed of 25 m/s. Determine the following:…

A: Given  radius of sphere (r) =.10 cm  Terminal velocity (v)=25 m/s density of Air ρ =1.2 kg/m3…

Q: schematic of wind blowing on a traffic barrier drum (A 55-gallon drum painted orange). Estimate the…

A: Draw the free-body diagram of the system.

Q: A wind stress of 0.2 N m-2 blows over an initially stationary freshwater lake, 20 km long, and moves…

A: Shear stress acts tangentially to the surface. Turbulent flow  is that type of flow in which the…

Q: If the airplane flies horizontally at 70 m/s. Its propeller delivers 1500 N of thrust (forward force)…

A: As drag coefficient and lift coefficient is not given Let’s assume Cd and to be 1

Q: You are given a drone with an average chord length of 8 in., a wingspan of 2.5 ft, and a weight of…

A: Given data: L=8 in=0.2032 mw=2.5 ft=0.762 mm=300 g=0.3 kgV=5 m/s Need to determine the lift…

Q: A 30 cm diameter cork ball (S=0.21) is tied to the bottom of a river as shown. (a) Draw the free…

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Q: Air at free-stream velocity of 9 m/s flows over a thin flat plate of length 3 m and width 1.5 m. A…

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Q: 2) When calculate the lift coefficient, the area A in the equation is: a) surface area b) planform…

A: The sum of the components of the pressure and wall shear forces; (a) in the flow direction is called…

Q: The so-called Rocket Man, Yves Rossy, fl ew across the Alps in2008, wearing a rocket-propelled…

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Q: a stone is thrown from top of 35m tall bilding. The stone is thrown with an initail speed of 15 m/s…

A: givenheight of the buiding H=35minitial speed U=15m/sAngle makes with horizontal axis θ=53o

Q: A vehicle manufacturer is considering an engine for a new sedan (CD = 0.34, Af = 22 ft2). The car is…

A: Calculate the coefficient of rolling friction .         Fr=0.011+V147             = 0.01…

Q: An airplane with a NACA 23012 airfoil cruises at 150 m/s at an altitude of 6000 m. The airfoil has…

A: Given data as per question Velocity = 150 m/s Altitude = 6000 m Aspect ratio =10 Span length =36 m…

Q: A cannonball is shot from the edge of a 20-m-high vertical clif with an initial speed of 50 mis at…

A: Given data  Velocity of canon ball (vo) = 50 m/s angle of projection (θ) = 40o  To determine  Time…

Q: A two-dimensional diverging duct is being designed to diffuse the high-speed air exiting a wind…

A: (a) The variation of the with x can be expressed as, The density as a function of x can be…

Q: Cd=1.4 (coefficient of drag)  ¥=10 ft/sec (velocity) Ƴ=62.4 #/ft3  g=32.3 ft/sec2 a. What is the…

A: givencoefficient of drag CD=1.4velocity of water V=10ft/sdensity of water γ=62.4 lb/ft3g=32.3…

Q: Suppose at certain speed, your car has the air drag force of 290 N and the rolling resistance of 370…

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Q: Consider a Boeing 747 airliner cruising at a velocity of 550 mi/h at a standard altitude of 38,000…

A: This problem appears as the addition of two problems. The parameters to be determined for the first…

Q: **75. ssm A uniform rectangular plate is hanging vertically downward from a hinge that passes along…

A: Consider the diagram shown below for the horizontal position of plate. Here, FP is the pressure…

Q: An airplane with a NACA 662-215 airfoil cruises at 170 m/s at an altitude of 4550 m. The airfoil has…

A: Given data: Span length of air foil = 30 m Aspect ratio = 9 Speed, u = 170 m/s Altitude, h = 4550 m…

Q: A ship tows a submerged cylinder, which is 1.5 m in diameterand 22 m long, at 5 m/s in freshwater at…

A: Write the properties of water at 20°C.

Q: DAVANT DAVANTI DAVANT DAVANTS The diameter of a tire is 38 cm. When the tire is spinning at its…

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Q: Skydiver Luke jumps with his parachute of diameter D = 12 m out of an airplane. The combined mass of…

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Q: As a young engineer, you have been tasked to select the location of a wind turbine based on the…

A: "Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: The Russian Typhoon-class submarine is 170 m long, witha maximum diameter of 23 m. Its propulsor can…

A: The density of the seawater at 1 atm and 20 degrees Celsius is The given power in watts is The…

Q: 9. Determine the average wind velocity required to produce 9 MW of effective power by a wind turbine…

A: Given data: Blade length, r = 10 m Diameter of hub, D = 6 m Density of air, ρ = 1.12 kg/m3 Power…

Q: A freshwater boat of mass 400 kg is supported by a rectangularhydrofoil of aspect ratio 8, 2 percent…

A: Given data: Velocity of the boat, V = 7 m/s Aspect ratio, a = 8 (therefore b = 8C) Angle, α = 2.50…

Q: The drag equation of an aircraft is given by the equation: Cp = 0.025 + 0.035 CZ The weight of the…

A: Given dataW=120kNA=32m2F=12kNUsing the Drag relation then equation to find speed

Q: 3.) Automotive engineers work very hard to improve the value of the drag coefficient for cars.…

A: GIVEN:F=28000Nρ of air=1.21kg/m3v=150m/sA=4m2μ=0.2

Q: Task 3: An airplane with a NACA 23012 airfoil cruises at 150 m/s at an altitude of 6000 m. The…

A: Given data:- Span length of air foil  S = 36 m Aspect ratio = 10 Speed, u = 150 m/s Altitude, h =…

Q: A thin aerofoil of chord length 1 m, with small angle of attack flying at a speed of 111 m/s is…

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Q: The large block shown is x = 72 cm wide, y = 54 cm long, and z = 9.0 cm high. This block is passing…

A: Given:x=72 cm or 0.72 my=54 cm or 0.54 mz=9 cm or 0.09 mρ=1.43 kg/m3v=8.61 m/s

Q: 4.18 A flat plate is immersed in a Mach 2 flow at standard sea level conditions at an angle of…

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Q: A tractor-trailer truck is coasting freely, with no brakes,down an 8° slope at 1000-m standard…

A: Given data: The slop is θ = 8o. The standard altitude is h = 1000 m. The rolling resistance for…

Q: The large block shown is x = 72 cm wide, y = 54 cm long, V3 and z = 9.0 cm high. This block is…

A: Given: x=72 cm y=54 cm z = 9 cm v=7.98m/s ρ - 1.43 kg/m3 To find: Drag force

Q: Reference 12 contains inviscid theory calculations for the upper and lower surface velocity…

A: For the same datum, the relation between the velocity and pressure between two points can be…

Q: During the 1920s and early 1930s, the NACA obtained wind tunnel data on different airfoils by…

A: Given Data: The aspect ratio is AR=6.  The wing area is Aw=1.5 ft2. The velocity is V=100 ft/sec.…

Q: Water at 10°C flows over a 1.1-m-long flat plate with a velocity of 0.55 m/s. If the width of the…

A: Given data: The density of water, ρ = 999.7 kg/m3. Dynamic viscosity of water, µ = 1.307×10-3…

Q: The cart in Fig. moves at constant velocity V 0 =12 m/s and takes on water with a scoop 80 cm wide…

A: The velocity of the cart is V0=12 m/s. The water scoop has width w=80 cm. The height of the scoop…

Q: Determine the velocity required for take off for an aircraft with the following characteristics.…

A: Given that, Mass of aircraft, m=7200 kg,Wingspan=15 m,Wing shape=Rectangular,Wing chord length=1.8…

Q: When rowing downstream consider the following scenario. The current of the water is moving at 2 m/s…

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Q: Consider a propeller-type wind turbine with following specification: Air density = 1.2 Kg/m³…

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